EP3314054B1 - Dispositif de capteur pour la détection optique de caractéristiques d'un fluide - Google Patents

Dispositif de capteur pour la détection optique de caractéristiques d'un fluide Download PDF

Info

Publication number
EP3314054B1
EP3314054B1 EP16753969.1A EP16753969A EP3314054B1 EP 3314054 B1 EP3314054 B1 EP 3314054B1 EP 16753969 A EP16753969 A EP 16753969A EP 3314054 B1 EP3314054 B1 EP 3314054B1
Authority
EP
European Patent Office
Prior art keywords
housing
appendages
reflecting surface
optoelectronic
towards
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16753969.1A
Other languages
German (de)
English (en)
Other versions
EP3314054A1 (fr
Inventor
Fabio Arpino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bitron SpA
Original Assignee
Bitron SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bitron SpA filed Critical Bitron SpA
Priority to SI201631697T priority Critical patent/SI3314054T1/sl
Publication of EP3314054A1 publication Critical patent/EP3314054A1/fr
Application granted granted Critical
Publication of EP3314054B1 publication Critical patent/EP3314054B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4297—Arrangements for detecting or measuring the condition of the washing water, e.g. turbidity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/20—Washing liquid condition, e.g. turbidity

Definitions

  • the present invention relates to a sensor device for optically detecting the characteristics of a fluid, such as the turbidity of the washing bath in a dishwasher or a washing machine.
  • the invention relates to a sensor device according to the preamble of claim 1.
  • the reflecting surfaces which deflect the radiation beam are formed at the ends of one or two transparent bodies, made separately and distinctly from the housing of the device and mounted in the finger-like appendages of the housing.
  • the optical path of the radiation beam mainly extends in a plane essentially parallel to the longitudinal directions of said appendages of the housing of the device.
  • One object of the present invention is to provide an improved type of sensor device.
  • said optical path extends in a plane at an angle, and preferably orthogonal, to the longitudinal directions of said appendages of the housing.
  • the aforesaid optical path comprises first and second reflecting surfaces made in the first and second appendages of the housing, respectively,
  • the first and second optoelectronic devices may be mounted on two portions of the same circuit board, which each extend in one of said appendages of the housing, said optoelectronic devices being orientated so that the beam transmitted by the first and the beam received by the second are essentially parallel to one another.
  • the number 1 denotes the whole of a sensor for optically detecting characteristics of a fluid, made according to the present invention.
  • the sensor device 1 comprises a housing 2, including a base portion 3 from which first and second finger-like hollow appendages 4, 5 extend in the same direction, at least partially facing one another.
  • the fluid of which at least one characteristic, such as the degree of turbidity, is to be optically detected is present in the region outside the housing 2 and between the appendages 4 and 5.
  • the base portion 3 of the housing 2 has an essentially flat top surface 3a, and the appendages 4 and 5 each have a half-moon profile in cross section.
  • the facing surfaces 4a and 5a of the appendages 4 and 5 are essentially flat and parallel to one another.
  • At least the appendages 4 and 5, but preferably the whole housing, are made of a moulded plastic material which is transparent to the radiation used.
  • the housing 2 as a whole may be made from one piece of plastic material, preferably by injection moulding.
  • each appendage 4 there is formed a respective internal cavity 10, 11, opening towards the base portion 3 of the housing 2.
  • the cavities 10 and 11 are made without undercuts, so that they can easily be formed during the injection moulding of the housing 2.
  • a circuit board 12 is positioned inside the housing 2, and comprises a base portion 12a, which extends into the cavity 8 and carries a plurality of conductive tracks 13 acting as connecting members for connection to external circuits (not shown).
  • the board 12 also has two appendages 12b and 12c, which protrude from the base portion 12a and extend into the cavities 6 and 7 inside the appendages 4 and 5 of the housing 2.
  • the appendages 12b and 12c of the circuit board 12 extend into the cavities 6 and 7 of the appendages 4 and 5 of the housing 2, at least to the height of their internal cavities 10 and 11.
  • An optoelectronic device 13 for transmitting radiation is mounted on the surface of the appendage 12b of the board 12 facing the cavity 10.
  • An optoelectronic device 14 for receiving radiation is mounted on the surface of the appendage 12c of the board 12 facing the cavity 11.
  • the device 13 is, for example, an emitting diode such as an LED.
  • the device 14 is, for example, a phototransistor.
  • the optoelectronic devices 13 and 14 are orientated so that the beam transmitted by the first and the beam received by the second are essentially parallel to one another (although this arrangement is preferable, it is not essential). Additionally, the walls 10a and 11a of the cavities 10 and 11 which are nearest to the corresponding optoelectronic devices 13 and 14 ( Figure 3 ) are essentially flat, the wall 10a being inclined essentially at 45° to the direction of the beam transmitted by the optoelectronic device 13 and essentially at 90° to the surface 11a, which is orientated essentially at 45° to the axis of the beam of the optoelectronic device 14.
  • the arrangement is such that, in use, the optoelectronic device 13 transmits a radiation beam towards the surface 10a of the cavity 10, through a wall 4b of the appendage 4 of the housing 2.
  • the transparent plastic material of which the housing 2, or at least the housing appendages 4 and 5, are made has a refractive index such that the beam incident on the border surface 10a between the wall 4b and the internal cavity 10 undergoes total reflection and is deflected towards the other appendage 5 of the housing 2, as shown schematically in Figure 3 .
  • the surface 10a therefore acts as a reflecting surface, without having to be provided with any layer of reflective material.
  • the reflection essentially takes place as a result of the difference between the refractive indices of the material forming the appendage 4, and particularly its wall 4b, and the air filling the internal cavity 10 of this appendage.
  • the radiation beam Downstream of the reflecting surface 10a, the radiation beam is propagated towards the appendage 5, passing through the channel-like region 15 delimited by the top surface 3a of the base portion 3 of the housing 2 and the facing surfaces or faces 4a and 5a of the appendages 4 and 5.
  • the optical path of the beam therefore comprises an intermediate portion, indicated by 16 in Figures 3 and 5 , which in use extends through the fluid of which a characteristic is to be optically detected.
  • the radiation beam therefore passes through part of the appendage 5, until it reaches the border surface 11a between the wall 5b of this appendage and the corresponding internal cavity 11.
  • the surface 11a also acts as a surface for reflecting the radiation beam incident on it, as a result of the difference between the refractive indices of the material forming the appendage 5 and the air filling the internal cavity 11.
  • the reflecting surface 11a deflects the incident beam towards the receiving optoelectronic device 14.
  • the reflecting surfaces 10a and 11a can easily be formed integrally with the body of the housing 2, and enable the radiation beam to be reflected without the use of additional components.
  • the production of the reflecting surfaces 10a, 11a by injection moulding provides the appropriate constancy in their positioning and the related optical performance.
  • the present invention enables the width of the light beam that can reach the photoreceiver to be limited to the beam reflected from said reflecting surfaces.
  • the portion of the radiation beam transmitted by the first optoelectronic device, which is not deflected in the measurement area towards the second optoelectronic device, is orientated in directions which minimize its effect on the reading.
  • the reflecting surfaces 10a and 11a are essentially flat.
  • the reflecting surface 10a has a curved profile for the "concentration" or collimation of the beam reflected towards the other reflecting surface 11a.
  • the reflecting surface 11a may also be of a non-planar type and may be shaped so as to concentrate the beam reflected towards the optoelectronic device 14.
  • Figures 6 and 7 show a variant embodiment.
  • the housing 2 is essentially of generally cylindrical shape, and the region 15 lying between the appendages 4 and 5 is formed by a recess extending towards the inside of this housing 2 from its cylindrical side surface, and from part of its top surface.
  • This recess or region 15 is delimited below by the horizontal surface 3a, and laterally by the facing surfaces or faces 4a, 5a of the appendages 4 and 5, as well as by a surface 20a which is essentially vertical and orthogonal to the surfaces or faces 3a, 4a and 5a.
  • the surface 20a is the outer surface of a wall 20, which is made integrally with the housing 2 and which interconnects the appendages 4 and 5.
  • the wall 20 helps to delimit, together with the cylindrical wall portion of the top portion of the housing 2, an internal region 19, which communicates below with the inside of the base portion 3.
  • the transmitting optoelectronic device 13 and the receiving optoelectronic device 14 are carried by the same circuit board 12 as that which extends at the wall 20, and face in opposite directions towards internal formations 21 and 22 made in one piece with the housing 2.
  • the formation 21 has a surface 21b, planar for example, extending in a plane essentially orthogonal to the direction of the radiation beam transmitted by the transmitting device 13. This formation 21 also has a further vertical surface or face 21a, orientated essentially at 45° to the surface 21b and intended to act, in use, as a total reflection surface adapted to deflect the beam received from the transmitting device 13 towards the reflecting surface 10a formed in the cavity 10.
  • the formation 22 has a surface 22a acting, in use, as a total reflection surface for the beam which is received from the optical path 16 and which is reflected towards this surface by the surface 1 1a of the cavity 11.
  • the formation 22 has a further border surface 22b, orientated essentially at 45° to the surface 22a, and facing the receiving device 14.
  • the arrangement is such that the radiation beam transmitted, in use, by the optoelectronic device 13 passes through the formation 21, is reflected at the surfaces 21a and 10a, then passes through the region 15 lying between the appendages 4 and 5, and then penetrates into the appendage 5 and is reflected first by the surface 11a and subsequently by the surface 22a towards the receiving optoelectronic device 14.
  • reflecting surfaces 10a, 11a, 21a and 22a are shown as flat surfaces in Figure 7 , one or more of them may conveniently be shaped so as to impart a corresponding shape to the radiation beam which, in use, travels between the transmitting device 13 and the receiving device 14.
  • the shape of the housing shown therein may also be used in a device in which the optoelectronic elements 13 and 14 and the associated reflecting surfaces 10a and 11a are arranged as shown in Figures 1 to 5 .
  • the housing 2 forms a further appendage 30 which extends from the portion 3a into the passage 15 between the appendages 4 and 5, preferably in a direction parallel to these appendages.
  • the appendage 30 is hollow (see Figure 9 ), and a further portion 12d of the circuit board 12, coplanar with the other portions 12a - 12c of this circuit board, extends inside this appendage.
  • the portion 12d bears an electrical temperature sensor 31, of a known type, intended to supply, in use, electrical signals indicative of the temperature of the washing bath in contact with the appendage 30.
  • the housing 2 of the device has a configuration similar to that of Figures 6 and 7 , and the temperature sensor is placed inside it, near the wall indicated by 20a in said figures, on the same circuit board 12 as that which bears the transmitter 13 and the receiver 14.
  • the optical path of the radiation beam between the transmitter and the receiver extends in a plane at an angle to the longitudinal directions of the appendages 4 and 5 of the housing 2, and in particular this plane is orthogonal to said longitudinal directions.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Textile Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Claims (14)

  1. Dispositif de capteur (1) pour détecter optiquement des caractéristiques d'un fluide, comprenant
    un boîtier (2) comportant une portion de base (3) et des premier et second appendices creux (4, 5) sous forme de doigts s'étendant depuis le boîtier (2) suivant des directions longitudinales respectives et se faisant au moins partiellement face l'un l'autre, dans lequel, en utilisation, ledit fluide est présent entre lesdits premier et second appendices (4, 5),
    des premier et second dispositifs optoélectroniques (13, 14) capables d'émettre et de recevoir un rayonnement, respectivement, montés dans une cavité de boîtier (6, 7, 8 ; 19) formée dans le boîtier, dans les premier et second appendices (4, 5) du boîtier (2) respectivement, ladite cavité de boîtier (6, 7, 8 ; 19) étant ouverte vers la portion de base (3) du boîtier (2) ;
    l'agencement étant tel que, en utilisation, un faisceau de rayonnement émis par le premier dispositif optoélectronique (13) se propage dans un chemin optique qui comporte une portion (16) traversant le fluide entre lesdits appendices (4, 5) et atteint le second dispositif optoélectronique (14) ;
    dans lequel ledit chemin optique comprend une pluralité de surfaces réfléchissantes (10a ; 11a ; 21a ; 22a) adaptées pour dévier le faisceau de rayonnement entre les dispositifs optoélectroniques (13 ; 14) et ladite portion de traversée de fluide (16), lesdites surfaces réfléchissantes (10a ; 11a ; 21a ; 22a) étant réalisées intégralement avec lesdits appendices (4, 5) du boîtier (2) ;
    moyennant quoi
    des première et seconde cavités internes (10, 11) sont formées dans des portions distales des premier et second appendices (4, 5) du boîtier (2), respectivement, lesdites première et seconde cavités internes (10, 11) étant ouvertes vers la portion de base (3) du boîtier (2) ;
    dans lequel ladite pluralité de surfaces réfléchissantes comprend des première et deuxième surfaces réfléchissantes (10a ; 11a) qui bordent les première et seconde cavités internes (10 ; 11) desdits appendices (4 ; 5) contenant de l'air ; et
    dans lequel la première surface réfléchissante (10a) est interposée entre le premier dispositif optoélectronique (13) et la première cavité interne (10), et dans lequel la deuxième surface réfléchissante (11a) est interposée entre la seconde cavité interne (11) et le second dispositif optoélectronique (14), dans lequel ledit chemin optique s'étend dans un plan faisant un angle avec les directions longitudinales desdits appendices (4, 5).
  2. Dispositif selon la revendication 1, dans lequel le boîtier (2) est réalisé en une seule pièce de matière plastique avec lesdits premier et second appendices et lesdites première et deuxième surfaces réfléchissantes.
  3. Dispositif selon l'une quelconque des revendications précédentes, dans lequel ladite au moins une surface réfléchissante (10a ; 11a ; 21a ; 22a) est essentiellement plate.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, dans lequel ladite au moins une surface réfléchissante (10a ; 11a ; 21a ; 22a) est conformée de façon à conférer une forme prédéterminée au faisceau réfléchi.
  5. Dispositif selon l'une des revendications précédentes, dans lequel
    la première surface réfléchissante (10a) est adaptée pour dévier le faisceau de rayonnement émis par le premier dispositif optoélectronique (13) vers la portion de traversée de fluide (16) précitée ;
    la deuxième surface (11a) est adaptée pour dévier le faisceau de ladite portion de traversée (16) vers le second dispositif optoélectronique (14).
  6. Dispositif selon l'une des revendications précédentes, dans lequel ledit chemin optique s'étend dans un plan orthogonal aux directions longitudinales desdits appendices (4, 5).
  7. Dispositif selon la revendication 5 ou 6, dans lequel les premier et second dispositifs optoélectroniques (13, 14) sont portés par deux portions (12b, 12c) d'une même carte de circuit imprimé (12), qui s'étendent chacune dans l'un desdits appendices (4, 5) du boîtier (2), lesdits premier et second dispositifs optoélectroniques (13, 14) étant orientés de sorte que le faisceau émis par le premier (13) et le faisceau reçu par le second (14) soient essentiellement parallèles entre eux.
  8. Dispositif selon l'une des revendications 5 à 7, dans lequel les première et deuxième surfaces réfléchissantes (10a, 11a) sont toutes deux essentiellement plates.
  9. Dispositif selon l'une des revendications 5 à 7, dans lequel la première surface réfléchissante (10a) est conformée de façon à conférer une forme prédéterminée au faisceau réfléchi.
  10. Dispositif selon la revendication 5, dans lequel sont formées dans le boîtier (2), au niveau desdits premier et second appendices (4, 5),
    une troisième surface réfléchissante (21a) agencée de façon à réfléchir vers la première surface réfléchissante (10a) le faisceau émis par le premier dispositif optoélectronique (13) ; et
    une quatrième surface réfléchissante (22a) agencée de façon à réfléchir vers le second dispositif optoélectronique (14) le faisceau réfléchi par la deuxième surface réfléchissante (11a).
  11. Dispositif selon la revendication 10, dans lequel le premier dispositif optoélectronique (13) et le second dispositif optoélectronique (14) sont montés et orientés sur des côtés essentiellement opposés, vers la troisième et la quatrième surface réfléchissante (21a ; 22a) respectivement.
  12. Dispositif selon l'une des revendications précédentes, dans lequel entre lesdits appendices (4, 5) est formée une région (15) réalisée sous forme d'un évidement du boîtier (2) s'étendant entre la paroi latérale et une paroi d'extrémité dudit boîtier (2).
  13. Dispositif selon l'une quelconque des revendications précédentes, comportant en outre un capteur de température (31) monté dans ledit boîtier.
  14. Dispositif selon la revendication 13, dans lequel le capteur de température (31) est monté sur la même carte de circuit imprimé (12) que celle portant lesdits dispositifs optoélectroniques (13, 14).
EP16753969.1A 2015-06-29 2016-06-29 Dispositif de capteur pour la détection optique de caractéristiques d'un fluide Active EP3314054B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201631697T SI3314054T1 (sl) 2015-06-29 2016-06-29 Senzorska naprava za optično zaznavanje karakteristik fluida

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUB20151760 2015-06-29
PCT/IB2016/053883 WO2017002032A1 (fr) 2015-06-29 2016-06-29 Dispositif de capteur pour la détection optique de caractéristiques d'un fluide

Publications (2)

Publication Number Publication Date
EP3314054A1 EP3314054A1 (fr) 2018-05-02
EP3314054B1 true EP3314054B1 (fr) 2023-05-03

Family

ID=54251644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16753969.1A Active EP3314054B1 (fr) 2015-06-29 2016-06-29 Dispositif de capteur pour la détection optique de caractéristiques d'un fluide

Country Status (6)

Country Link
US (1) US10184889B2 (fr)
EP (1) EP3314054B1 (fr)
KR (1) KR102530952B1 (fr)
PL (1) PL3314054T3 (fr)
SI (1) SI3314054T1 (fr)
WO (1) WO2017002032A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108930137B (zh) * 2017-05-27 2022-01-04 青岛海尔洗衣机有限公司 多功能洗涤装置和洗衣机
PL3712317T3 (pl) * 2019-03-21 2022-04-04 Tp Reflex Group S.P.A. Czujnik zmętnienia do urządzenia do mycia, w szczególności do użytku domowego, i powiązane urządzenie do mycia obejmujące wspomniany czujnik
EP3839446B1 (fr) * 2019-12-16 2024-03-13 Andreas Stihl AG & Co. KG Détecteur optique de liquide de fonctionnement destiné à la détection optique d'un liquide de fonctionnement pour un appareil portatif de traitement de jardinage, forestier et/ou de construction et appareil portatif de traitement de jardinage, forestier et/ou de construction
KR20230169192A (ko) * 2021-04-12 2023-12-15 일리노이즈 툴 워크스 인코포레이티드 세척 기기 내의 세척 매체의 탁도를 감지하기 위한 센서 어셈블리

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0972486A1 (fr) * 1998-07-15 2000-01-19 Whirlpool Corporation Capteur optique

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU523922B2 (en) * 1978-04-28 1982-08-19 Tokyo Shibaura Electric Company Ltd. Apparatus for measuring the degree of rinsing
US5680111A (en) * 1994-02-05 1997-10-21 Baxter International Inc. Dual sensor air-in-line detector
US6173428B1 (en) * 1994-11-16 2001-01-09 Cray Research, Inc. Apparatus and method for testing using clocked test access port controller for level sensitive scan designs
US5661303A (en) * 1996-05-24 1997-08-26 Libbey-Owens-Ford Co. Compact moisture sensor with collimator lenses and prismatic coupler
DE19714695C2 (de) * 1997-04-09 2001-08-16 Zangenstein Elektro Wasch- oder Geschirrspülmaschine mit Trübungssensor
EP1335060B1 (fr) * 2002-01-31 2007-06-20 emz-Hanauer GmbH & Co. KGaA Capteur de turbidité avec capteur de température pour appareil ménager
US20040254513A1 (en) * 2002-04-10 2004-12-16 Sherwin Shang Conductive polymer materials and applications thereof including monitoring and providing effective therapy
US6947131B2 (en) * 2002-05-07 2005-09-20 Chf Solutions, Inc. Blood leak detector for extracorporeal treatment system
DE202004017677U1 (de) * 2004-11-15 2005-01-05 Elektromanufaktur Zangenstein Hanauer Gmbh & Co. Kgaa Vorrichtung zum Erfassen eines Leitwerts eines Fluids
KR20090098453A (ko) * 2008-03-14 2009-09-17 삼성전자주식회사 탁도센서와 이를 갖는 가전기기
US20090310123A1 (en) * 2008-06-16 2009-12-17 Robert John Thomson Blood concentrate detector
DE102010026068B4 (de) * 2010-07-05 2017-09-28 Emz-Hanauer Gmbh & Co. Kgaa Optischer Sensor, insbesondere zum Einbau in eine Waschmaschine oder eine Geschirrspülmaschine der Haushaltsausstattung
US8648321B2 (en) * 2010-07-05 2014-02-11 Emz-Hanauer Gmbh & Co. Kgaa Optical sensor for use in a domestic washing machine or dishwasher
US8169622B1 (en) * 2010-11-05 2012-05-01 Emz-Hanauer Gmbh & Co. Kgaa Optical sensor for mounting to a washing machine or dish washer
US8834646B2 (en) * 2011-05-16 2014-09-16 General Electric Company Turbidity sensor and related consumer appliance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0972486A1 (fr) * 1998-07-15 2000-01-19 Whirlpool Corporation Capteur optique

Also Published As

Publication number Publication date
WO2017002032A1 (fr) 2017-01-05
KR102530952B1 (ko) 2023-05-10
US10184889B2 (en) 2019-01-22
SI3314054T1 (sl) 2023-09-29
EP3314054A1 (fr) 2018-05-02
PL3314054T3 (pl) 2023-08-07
US20180202931A1 (en) 2018-07-19
KR20180034388A (ko) 2018-04-04

Similar Documents

Publication Publication Date Title
EP3314054B1 (fr) Dispositif de capteur pour la détection optique de caractéristiques d'un fluide
JP5250691B2 (ja) 蓋体
CN104350406B (zh) 光插座及具备该光插座的光学模块
JP6011040B2 (ja) 光電センサ
US10261272B2 (en) Optical receptacle and optical module
CN104280839A (zh) 光插座及光模块
BRPI1100301A2 (pt) sensor de proximidade
JP6943660B2 (ja) 光レセプタクルおよび光モジュール
KR20110127183A (ko) 가전기기용 탁도 센서
RU2017136552A (ru) Светодиодное осветительное устройство
CN102062585A (zh) 非接触式探头和测量机
US9519110B2 (en) Detector, light guide and utility meter
TW201921017A (zh) 光插座與光模組
JP6555681B2 (ja) 光レセプタクルおよび光モジュール
CN105849611A (zh) 光插座及光模块
JP6291300B2 (ja) 光レセプタクルおよび光モジュール
JP2012093232A (ja) フォトセンサ及びレベルセンサ
US9861248B2 (en) Optical sensor for water-air detection
JP2018170394A5 (fr)
JP6011908B2 (ja) 光レセプタクルおよびこれを備えた光モジュール
KR101524047B1 (ko) 비접촉식 광센서 및 이를 갖는 단말기
KR200445134Y1 (ko) 프레넬 렌즈 모듈
JP2019060979A (ja) 光レセプタクルおよび光モジュール
PL240539B1 (pl) Czujnik optyczny do detekcji powietrza-wody i elektryczne urządzenie gospodarstwa domowego stosujące ten czujnik
TW201921019A (zh) 光學插座的製造方法以及用於其的模具

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180125

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20210507

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602016079176

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: D06F0039000000

Ipc: D06F0034220000

RIC1 Information provided on ipc code assigned before grant

Ipc: D06F 103/20 20200101ALN20221006BHEP

Ipc: A47L 15/42 20060101ALI20221006BHEP

Ipc: G01N 21/59 20060101ALI20221006BHEP

Ipc: D06F 34/22 20200101AFI20221006BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: D06F 103/20 20200101ALN20221108BHEP

Ipc: A47L 15/42 20060101ALI20221108BHEP

Ipc: G01N 21/59 20060101ALI20221108BHEP

Ipc: D06F 34/22 20200101AFI20221108BHEP

INTG Intention to grant announced

Effective date: 20221121

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1564671

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230515

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602016079176

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230525

Year of fee payment: 8

Ref country code: DE

Payment date: 20230620

Year of fee payment: 8

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230503

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1564671

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230904

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230803

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20230704

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230903

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230804

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SI

Payment date: 20230615

Year of fee payment: 8

Ref country code: PL

Payment date: 20230626

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602016079176

Country of ref document: DE

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230629

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230629

26N No opposition filed

Effective date: 20240206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230629

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230803

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230629

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230703

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230630